I found that there are couple of pro-ana sites (Hoyhenen kevyt & Make yourself pretty) at Forumotion. Actually there probably are several, but at least one of these sites is somewhat large pro-ana forum; as far as I know, the most popular in Finland. They are both under the Finnish version of your service, called "palstani.com", but as I was unable to find an moderator contact e-mail, I decided to register on this forum and tell about that.

Both sites are in Finnish, but in case there's no Forumotion adminstrator who knows the language, the sub-forum names and the overall look will still tell you everything. Both sites tell straight out that they are eating disorder forums.

The pro-ana sites may not be illegal, and if you close them they'll probably set up new ones. Still I hope that immediately closing these forums would save at least some people from a great harm and —I don't know if I should say in the best case, or in the worst case— from death. Thus I hope you do, what you should to.

Actually, personally, I think its best to keep them up; it helps people express their feelings and find ways to improve their health, so their not anorexic.It also displays common symptoms of the unfortunate disease, which can lead to early detection & actual prevention, if proper support is looked for.